Software Alternatives, Accelerators & Startups

Koinly VS Fystack

Compare Koinly VS Fystack and see what are their differences

Koinly logo Koinly

Koinly is the easiest way to monitor your crypto activity & file your taxes.

Fystack logo Fystack

Stablecoin wallet infrastructure for every business
  • Koinly Landing page
    Landing page //
    2021-10-12

Koinly is a cryptocurrency calculator trusted by crypto investors in over 20 countries. Koinly integrates with 700+ exchanges, blockchains, and wallets to give investors an easy and accurate way to track their crypto transactions in one place. From here, Koinly calculates the total capital gains and income an investor has derived from their crypto in any financial year.

  • Fystack Self-custody for business
    Self-custody for business //
    2025-11-19

Fystack is a stablecoin wallet infrastructure that gives businesses 100% control through enterprise-grade self-custody.

Why Fystack: We help Web3 Neobanks and Fintechs go on-chain 10x faster and more cost-effectively. Fystack replaces fragmented vendors with a single, self-hosted platform. By owning your infrastructure, you eliminate vendor lock-in, ensure data sovereignty, and cut engineering costs by $30kโ€“50k/year.

What We Deliver (but not limited to): 1. Enterprise MPC Security: Enterprise-grade stablecoin custody for your treasury and user funds. 2. Built-in Compliance: Automate AML/KYT screening for every transaction directly within the wallet. 3. Automated Policy Engine: Replace manual work with smart rules. Set spending limits and approval flows instantly. 4. Scalable Payouts API: Automate mass stablecoin payments across 10+ blockchains with a single line of code.

Fystack

Website
fystack.io
$ Details
freemium $59.0 / Monthly ("3 MPC wallets", "2 workspaces, "5 users")
Release Date
2025 July
Startup details
Country
Vietnam
Founder(s)
Thi Nguyen
Employees
10 - 19

Koinly features and specs

  • User-Friendly Interface
    Koinly offers an intuitive and easy-to-navigate interface, making it accessible for both novice and experienced crypto investors.
  • Comprehensive Transaction Tracking
    The platform supports a wide range of cryptocurrencies and integrates with numerous exchanges and wallets, allowing for detailed transaction tracking.
  • Tax Reporting
    Koinly provides automated tax reports that comply with the regulations in various countries, simplifying the process of filing crypto taxes.
  • Accurate Calculations
    Koinly uses advanced algorithms to accurately calculate gains, losses, and income from your crypto activities.
  • Excellent Customer Support
    Users generally report positive experiences with Koinly's customer support, which is responsive and helpful.
  • Portfolio Insights
    The platform offers valuable insights into your crypto portfolio, including detailed analytics and performance tracking.

Possible disadvantages of Koinly

  • Cost
    While Koinly offers a free plan, advanced features and comprehensive reporting require a paid subscription, which might be expensive for some users.
  • Limited Free Plan
    The free plan has limitations on the number of transactions it can handle, which may not be sufficient for active traders.
  • Complex Transactions
    Some users have reported that the platform struggles with the accurate categorization and calculation of more complex transactions, such as DeFi activities.
  • Privacy Concerns
    Some users may be concerned about providing access to their exchange and wallet data, which involves sharing sensitive financial information with a third-party service.
  • Data Sync Issues
    Occasionally, there are reports of synchronization issues where data from exchanges or wallets doesn't update correctly or promptly.
  • Learning Curve for Detailed Features
    While basic features are user-friendly, some of the more advanced tools and customization options might have a steeper learning curve.

Fystack features and specs

  • Modern Tech Stack
    Fystack appears to offer a modern, integrated technology stack designed to help developers build full-stack applications efficiently, leveraging contemporary frameworks and tools.
  • Full-Stack Solution
    Fystack aims to provide a comprehensive full-stack development platform, reducing the need to piece together multiple disparate technologies for frontend, backend, and infrastructure.
  • Developer Productivity
    By bundling commonly needed tools and configurations together, Fystack can potentially accelerate development workflows and reduce boilerplate setup time for new projects.
  • Streamlined Development Experience
    Fystack seeks to offer a cohesive developer experience where components are designed to work together seamlessly, reducing integration headaches common with assembling custom stacks.
  • Opinionated Architecture
    Having an opinionated stack can be a benefit for teams that want clear conventions and best practices baked in, reducing decision fatigue and ensuring consistency across projects.

Possible disadvantages of Fystack

  • Limited Community and Ecosystem
    As a relatively niche or lesser-known platform, Fystack likely has a smaller community compared to mainstream frameworks, meaning fewer tutorials, plugins, third-party integrations, and community support resources.
  • Vendor Lock-in Risk
    Adopting a bundled stack like Fystack may create dependency on its specific tooling and conventions, making it harder to migrate away or swap out individual components if needs change.
  • Limited Track Record
    Fystack does not have the extensive production track record of more established technologies, which may raise concerns about long-term stability, maintenance, and enterprise readiness.
  • Reduced Flexibility
    An opinionated, integrated stack can limit flexibility when developers need to customize or deviate from the prescribed architecture, potentially making edge cases or unique requirements harder to implement.
  • Learning Curve for Proprietary Patterns
    Developers may need to learn Fystack-specific patterns and conventions that don't directly transfer to other technologies, which could be a concern for team hiring and skill portability.

Analysis of Koinly

Overall verdict

  • Overall, Koinly is considered a reliable and efficient tool for managing cryptocurrency taxes. It is well-suited for individuals who seek an automated solution to handle their crypto tax responsibilities and wish to ensure compliance without hassle.

Why this product is good

  • Koinly is often regarded as a good cryptocurrency tax software due to its user-friendly interface, comprehensive support for a wide range of exchanges and wallets, and its ability to generate tax reports compliant with various countries' regulations. It automates the tedious process of tracking transactions, calculating gains and losses, and preparing necessary tax documents. Additionally, it supports multiple currencies and offers detailed features that cater to both casual investors and professional traders.

Recommended for

  • Cryptocurrency investors seeking an easy-to-use tax solution
  • Frequent traders needing comprehensive transaction tracking
  • Individuals looking for a software compatible with various international tax jurisdictions
  • Users who want to automate their tax reporting process

Analysis of Fystack

Overall verdict

  • Fystack (fystack.io) appears to be a modern infrastructure/security-focused platform, likely aimed at developers or organizations needing robust backend or wallet/asset management solutions. Based on available positioning, it presents itself as a solid choice for teams prioritizing security, scalability, and developer-friendly tooling, though as with any specialized platform, suitability depends on your specific technical requirements and use case.

Why this product is good

  • Focuses on security-first architecture for sensitive operations
  • Designed with developer experience and integration ease in mind
  • Built to scale for growing infrastructure needs
  • Likely offers modern API-driven tooling for automation
  • Positioned as a specialized solution rather than a generic one-size-fits-all product

Recommended for

  • Development teams needing secure infrastructure tooling
  • Companies looking for scalable backend or asset management solutions
  • Technical users comfortable with API integrations
  • Organizations prioritizing security in their tech stack
  • Startups or scale-ups needing specialized infrastructure support

Koinly videos

Rippleโ€™s Shareholder SBI Invest in QIWI. Ripple Unleashes 1B XRP. Koinly to Add Support for XRP!

More videos:

  • Review - Koinly Review - Paying Taxes on Crypto The Easy Way
  • Review - Koinly Review: The BEST for Crypto Taxes?

Fystack videos

Fystack's Demo Video

More videos:

  • Review - 2. Secure Crypto Deposits on Fystack Custody Platform
  • Review - 5. Audit Trails, Analytics & Exporting Wallet Data | Track Inflows & Outflows on Fystack

Category Popularity

0-100% (relative to Koinly and Fystack)
Cryptocurrencies
100 100%
0% 0
Blockchain
0 0%
100% 100
Crypto
100 100%
0% 0
Blockchain Infrastructure

Questions & Answers

As answered by people managing Koinly and Fystack.

What makes your product unique?

Fystack's answer:

Fystack is unique because it is an open-source, self-hosted stablecoin wallet infrastructure that gives businesses 100% sovereignty over their assets. Unlike SaaS competitors, we allow you to deploy enterprise-grade MPC security directly into your own environment, ensuring you never have to trust a third party with your keys.

Why should a person choose your product over its competitors?

Fystack's answer:

Businesses choose Fystack to eliminate vendor lock-in and cut engineering costs by $30kโ€“$50k annually. Our unified platform replaces the need for multiple fragmented vendors (custody, compliance, and policy), allowing you to launch on-chain products 10x faster than building in-house.

How would you describe the primary audience of your product?

Fystack's answer:

Our primary audience consists of Web3 Neobanks, Payment Gateways, and B2B Fintechs that need to manage user funds or high-volume corporate treasuries. We specifically serve technical teams and CTOs who demand full control and audibility over their security infrastructure.

What's the story behind your product?

Fystack's answer:

Fystack began as the very first startup idea of our founder, Thi, and evolved from a side project into a singular obsession to fix the broken custody model. Driven by the belief that businesses shouldn't have to ask for permission to access their own assets, the team has remained 100% focused on making self-hosted sovereignty accessible to everyone.

Which are the primary technologies used for building your product?

Fystack's answer:

Fystack is built on advanced Multi-Party Computation (MPC) cryptography, ensuring that private keys are split across nodes and never assembled in one place.

Who are some of the biggest customers of your product?

Fystack's answer:

Fystack is the infrastructure of choice for innovative Web3 Neobanks, Crypto Payment Processors, and On/Off-Ramp providers who require automation for stablecoin flows. We power teams that move beyond simple trading to managing complex, high-volume operational treasuries across multiple chains.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Koinly and Fystack

Koinly Reviews

Best Cryptocurrency Tax Software: Complete Guide to the Top Options
The automated data import is available via either an API exchange connection or by adding cryptocurrency wallet addresses. Data on margin trading, futures trading, staking, lending and DeFi can also be imported. An interesting feature is Koinlyโ€™s smart transfer matching, which leverages an artificial intelligence system to detect transfers that are made between your personal...
Source: blockonomi.com
14 Best Crypto Tax Software to Ease Your Calculation and Be Compliant
Koinly has a very generous free subscription that permits up to 10,000 transactions with lots of additional features. It supports the usual FIFO, LIFO, average cost basis, etc., for tax accountancy.
Source: geekflare.com
15 Best Koinly Alternatives 2022
As the name suggests, CryptoTax Calculator provides easy-to-understand tax calculations with customizable rules to support your unique tax needs. CryptoTax Calculator is an excellent Koinly substitute that does a better job than Koinly in giving powerful and accurate tax reports.

Fystack Reviews

Fystack vs Fireblocks โ€“ Self-Hosted vs SaaS: What Is the Future of Crypto Asset Custody for Businesses?
Regulatory frameworks like MiCA (EU) and SEC custody rules (US) increasingly require demonstrable control, auditability, and data residency. If your entire security stack is operated by a third-party SaaS, you canโ€™t fully prove compliance. With Fystackโ€™s self-hosted model, your organization maintains full visibility into data storage, transaction policies, and access...
Source: fystack.io

Social recommendations and mentions

Based on our record, Koinly seems to be more popular. It has been mentiond 306 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Koinly mentions (306)

  • Tax Question. If i buy $1000 worth of crypto and sell 50% on a double and then let the balance ride. Am i exempt from paying tax on that transaction?
    Every transaction you make with crypto is a taxable event. Even buying something with your bitcoin is a taxable event. So instead of looking at your balance, you have to look at each and every transaction and see how much you paid for the asset, how much you sold it for, and how long you held it. The ATO will also want a report on your crypto transactions, which you can get from koinly.io. That will also... Source: over 2 years ago
  • 48-nation bloc to crack down on using crypto assets to avoid tax
    Https://koinly.io/ is a popular recommendation here in Denmark. Denmark may have the worst possible taxation for crypto: every time you sell, use or convert your crypto, that's an event where you have to calculate your gains or losses. Gains are taxed like personal income (so up to 53% tax), but losses can only be deducted at 26% they do not offset the gains directly. A school teacher speculating in crypto ended... - Source: Hacker News / almost 3 years ago
  • Questions about defi
    -is it possible to track swaps and trades I'm making in defi via koinly.io or another tax tracking provider? I want to take advantage of long term capital gains vs short term whenever possible. Source: about 3 years ago
  • I made around 90K profit from a meme coin (crypto)recently and Iโ€™m 18 years old and have no idea how to go about taxes. Please help me . Also what could I do with my profits ?
    Every trade where you go from 1 coin to another is a capital gains event. Take a look into https://koinly.io/ to calculate it for you. Source: about 3 years ago
  • Staked ETH Rewards on Coinbase
    I just bit the bullet and pay koinly.io to do it for me. The one thing I like about it is you can tag staked transaction (eth to eth2) as swaps so they don't show up on your taxes. It's actually free until you want them to generate a tax form for you. Source: over 3 years ago
View more

Fystack mentions (0)

We have not tracked any mentions of Fystack yet. Tracking of Fystack recommendations started around Nov 2025.

What are some alternatives?

When comparing Koinly and Fystack, you can also consider the following products

CoinTracker - The most trusted cryptocurrency tax and portfolio manager

Fireblocks - Fireblocks is an all-in-one digital asset custody, settlement, and transfer platform that is intended for institutions, providing secure transfer and storing of digital assets.

CoinTracking - All Coins, all Analyzes, all Calculations, all Charts and all Prices for Bitcoin, Litecoin...

BitGo - BitGo is a security-as-a-service provider for Bitcoin and digital currency.

Coinpanda - Calculate & file tax reports for Bitcoin and cryptocurrencies. Made for traders and investors.

SafeWallet - Decentralized crypto-assets secure blockchain wallet